diff --git a/README.md b/README.md
index 5feb13ee..fddd35bf 100755
--- a/README.md
+++ b/README.md
@@ -68,7 +68,11 @@ For Order Printing
 		1) settings/print_settings
 			(a) Unique Code => OrderItemSlimCustomisePdf & OrderSummarySlimCustomisePdf
 			(b) Can change Header font size and Item Font Size as you like			
-				
+For Check in-out Printing
+	*********  Check in-out Pdf *********
+	1) settings/print_settings
+		(a) Unique Code => CheckInOutPdf
+	2) settings/lookups => { type:print_settings, name:CheckInOutPdf, value:1 }
 
 For ReceiptBillA5Pdf
 	*** change ReceiptBillPdf to ReceiptBillA5Pdf